U0074 - Control Module Communication Bus B Off
DTC DESCRIPTION U0074 - CONTROL MODULE COMMUNICATION BUS B OFF
| Description: This DTC sets when the controller area network 2 (CAN2) between the PCM and glow plug control module (GPCM) is open. | |||
Possible Causes:
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| Diagnostic Aids: The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center. Network DTC concerns occur during module-to-module communication. For additional description and operation of the vehicle communication network, refer to the appropriate Module Communications Network article. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST AF . | ||